申请人:Eli Lilly and Company
公开号:US04473497A1
公开(公告)日:1984-09-25
Compounds of the formula ##STR1## and pharmaceutically acceptable non-toxic acid addition salts thereof, in which R is hydrogen, methyl, ethyl, cyclopropylmethyl, or allyl; A is a residue of a D-amino acid selected from the group consisting of Ala, Abu, Nva, Val, Nle, Leu, Ile, Gly(Al), Gly(Cp), Met, Cys(Me), Met(O), Cys(Me)(O), Ser, Ser(Me), Thr, and Hse; R.sub.1 is hydrogen, C.sub.1 -C.sub.3 primary alkyl, cyclopropylmethyl, allyl, ethylthiomethyl, 2-fluoroethyl, or propargyl; and X is hydrogen, fluoro, bromo, iodo, chloro, hydroxy, C.sub.1 -C.sub.3 alkyl, trifluoromethyl, or C.sub.1 -C.sub.2 alkoxy; are useful analgesic agents.
式为##STR1##的化合物及其药学上可接受的无毒酸盐,其中R是氢、甲基、乙基、环丙甲基或烯丙基;A是从Ala、Abu、Nva、Val、Nle、Leu、Ile、Gly(Al)、Gly(Cp)、Met、Cys(Me)、Met(O)、Cys(Me)(O)、Ser、Ser(Me)、Thr和Hse等D-氨基酸中选择的残基;R.sub.1是氢、C.sub.1-C.sub.3一级烷基、环丙甲基、烯丙基、乙硫甲基、2-氟乙基或丙炔基;X是氢、氟、溴、碘、氯、羟基、C.sub.1-C.sub.3烷基、三氟甲基或C.sub.1-C.sub.2烷氧基;是有用的镇痛剂。